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Finding the Fourth Proportional to 151,847.94, 227,910.96 and 77,019.78

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Solution

The fourth proportional to 151,847.94, 227,910.96 and 77,019.78 is: 115,600.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,847.94 : 227,910.96 = 77,019.78 : x
  2. Step 2: Convert to fraction form
    151,847.94/227,910.96 = 77,019.78/x
  3. Step 3: Cross multiply
    151,847.94x = 227,910.96 × 77,019.78
  4. Step 4: Simplify right side
    151,847.94x = 17,553,651,998.79
  5. Step 5: Solve for x
    x = 17,553,651,998.79/151,847.94
  6. Step 6: Final answer
    x = 115,600.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.